Porovnať metódy
Prezrite si vybrané metódy vedľa seba; riadky, ktoré sa líšia, sú zvýraznené.
| Bayesovský regulačný diagram× | Six Sigma DMAIC× | |
|---|---|---|
| Odbor≠ | Plánovanie experimentov | Manažérstvo kvality |
| Rodina | Process / pipeline | Process / pipeline |
| Rok vzniku≠ | Formally developed in the 1990s–2000s; roots in Shewhart (1924) | 2014 |
| Tvorca≠ | Ulrich Menzefricke and others building on Shewhart (1924) and Bayesian inference (Bayes, 1763) | Motorola; Pyzdek & Keller |
| Typ≠ | Statistical process monitoring / quality control | Structured process improvement methodology |
| Pôvodný zdroj≠ | Menzefricke, U. (2002). On the evaluation of control chart limits based on predictive distributions. Communications in Statistics — Theory and Methods, 31(8), 1423–1440. DOI ↗ | Pyzdek, T., & Keller, P. (2014). The Six Sigma Handbook (4th ed.). McGraw-Hill. ISBN: 978-0-07-184053-9 |
| Ďalšie názvy | Bayesian SPC chart, Bayesian monitoring chart, posterior control chart, Bayesian Shewhart chart | DMAIC Framework, Six Sigma Process Improvement Cycle, Define-Measure-Analyze-Improve-Control, Altı Sigma DMAIC |
| Príbuzné≠ | 6 | 3 |
| Zhrnutie≠ | A Bayesian control chart integrates prior knowledge about a process — such as historical mean and variance — with incoming measurement data to produce dynamically updated control limits. Unlike classical Shewhart charts that fix limits from a Phase-I baseline, Bayesian charts update the posterior distribution of process parameters after each sample, yielding limits that adapt to accumulated evidence and are better calibrated under small sample sizes or non-stationary processes. | Six Sigma DMAIC is a data-driven, five-phase process improvement methodology — Define, Measure, Analyze, Improve, and Control — used to reduce defects and process variation to fewer than 3.4 defects per million opportunities. Originating at Motorola in the 1980s and systematized by practitioners including Pyzdek and Keller, it is widely adopted in manufacturing, healthcare, finance, and service industries seeking sustained quality gains. |
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